Odometer.



' TROWBRIDGE,

ODOMBTER.

APPLICATION FILED JAN.5, 1911.

2 sums-sum 1.

inventor:

A. TROWBRIDGE.

ODOMETER.

' APPLICATION rum) 11111.5, 1911.

Patented Mg. 29, 1911; .7 z BHEETFBEEET 2.

In ventor y W M [:4 Ways.

. 2 2 of Fig. 1. i Fig. 3 is a view of't'hc same engagement UNITED STATES PATENT OFFICE.

AMASA TROWB RIDGE, OF HARTFORDJCONNECTICUT, ASSIGNOR TO THE VEEDER I CONNECTICUT.

ANUFACTURING COMPANY, OF HARTFORD. CONNECTICUT, A CORPORATION OF Specification of Letters Patent. Patenfied Aug 29,. 1911 Application. ma January 5, i911. serial No. 500,973.

To all whom may concern:

Be it known that I, )hrAsA Tnowmunun, a citizen of the United .States, residing in the city of Hartford, in the State of Connecticut, have invented certain new and useful Improvements in Odometer-s, of which the following is a specification, reference being bad to the accompanying drawings,forming a parthereof.

This invention relates to distance measuring devices such as are applied to'the hubs of automobiles or other vehiclesand are driven through a connection to the station ary axle, and it has for its object to improve the means for actuating the registering de-- vices.

The invention will he more fully explained hereinafter with reference to the accompanying drawings in which it is illus' trated and in whic1- Figure l. is a view in side elevation showing a portion of the. hub of an automobile or other vehicle wheel equipped with the invention. Fig. 2 is a detail view in section on the plane indicated by the broken line" in end elevation, and Figs. t and 5 are detail. views showing apart. of the preferred connection lietwcentl' e stationary axle and the recording device. t

Tn the emhodiment'ofthe invention shown in the drawi'h gsithe hub a of a vchiclewh'cel is sho.wn asmoimtet, through suitahl e bearingsgthe detailsof which it is not necessary to represent, upon a stationary axle I),- a portion of-which-is shownl .Sccured upon the outcrcnd of the hub, so as to rotate therewith, is a cap 0 which covers the end of the hub and axle and incloses the registering device with its connections. The cap may be sccurcdupon the hub by any suitable means as by' having a sercwtln'emled therewith, as indicated in Fig. '2. v a

The cap r: is provided at a suitable point; with a glazed sight opening c tl iro|n h which the reading of the registering device may be tak'cn at any time and internally it is preferably provided, as 'clearlyshown in Fig. 2, with-a removable plate c in which as well as in the head of'thc cap a spindle f has its-bearings, the spindle being axially" alined with the stationary axle. '()n the gages a worm wheel on the shaft of the registering device 9, which may be of any suitable character and suitably secured to the cap 0 so as to rotate therewith. Thus, through therelative rotation. of the cap 0 and the spindle f the recording, device is actuated.

Since there is of necessity more or less relative displacement of the 'hub -a and therefore of the cap 2 and spindle f with respect to the statimiary axle 7), such rela tive displacement should be accommodated by the driving connections between the. axle. and the spindle, while provision must also be made for the convenient application of this driving connections to thelstationary ax c.

2, and has loosely connected thereto bya pmj'"? agdrlver l1. whlelrhas a loose driving engageih cnt; with the stationary axle D.

This loose driving engagement is XiiOStconveniently provided. for by drilling in the end of the axle 7) two holes i)" whiclrare" parts substantially as shown. and described herein the counter or registering, device noperly supported, is prevented t'romAheing tamperedwith by any unauthorized person and is driven withoutliahility to injury either of the. registering device or of the driving connections.

T claim as my invention: i 1. The combination with an axlehaving parallel holes in the end thereofand a linb ot a cap secured to the hub, a registering. dcvlee mounted on the cap to rotate therewith, and a loose driving connection.

between the registering device and the axle,

For this reason, the end of the" spindle f is slotted, as shown 'at' f in Fig.

the same comprising a forked driver en'gaging said parallel holes in the end' of tahe axle and driving connections between the driver and the registering device.

2. The combination with an axle and a.

spindle j is secured a worm'f which en:

hub, ofta. cap secured to the axle,.a register- -ing device mounted on the, cap to rotate therewith, and a loose drlving connection between the registering device and the axle, the same comprising-a spindle, driving con: neotions between the spmdle and the re istering device and a driver loosely pivote to the spindle and loosely engaging the axle permitting relative displacement ofthe axle 

